You enjoy going to outdoor concerts, sporting events, and other festivals but the no outside alcohol policy mixed with $8 drinks quickly dries up your enthusiasm. If you don't feel like following the rules you can always build a hidden compartment into a cooler and sneak your booze into the event.

Instructables user Gunner_scfaced this conundrum when attending the Kentucky Derby. His moonshiner cooler was built by the author first finding an inexpensive used cooler from Craigslist. Cut a panel out of the bottom of the cooler outer shell and the foam insulation. You're trying to create a 1" deep cavity so you can place your booze of choice in plastic bags and seal it back up. Use quart freezer bags to hold your booze and fit those into a gallon freezer bag—that way you have a bit of containment if a leak occurs and it makes it easier to pour into your cups later on. If you have several ⅓ full quart sized bags and have a 12" by 12" by 1" opening you should be able to fit around 2.2 liters of liquid in the hidden compartment according to the Instructables author.

See the full writeup at Instructables at the source link below for step-by-step instructions and photos. Just make sure that you're using this to sneak booze, not any other contraband that will get you in way more potential trouble than being ejected from an event.